Caster



V. H. YORK.

CASTER.

APPLICATION FILED 050.18, 192s.

1,412,499. Patented Apr. 11, 1922.

UNITED STATES vrcron H. YORK, oF WrLsoN, OKLAHOMA.

CASTER.

Application led December 18, 1920.

To all whom t may concern.'

Be it known that I, VICTOR I-I. YORK, a citizen of the United States, residing at Tilson, county of Carter, and State of Oklahoma, have invented a new and useful Caster, of which the following is a specification.

My invention relates to anti-friction de- Y vices such as casters and the like which are Fig. 3 is a section on a plane representedl by the line 3 3 of Fig. 2, the large ball being omitted for the sake of clearness.

Fig. 4t is a plan view as seen from below.

In the form of the invention illustrated in the drawings 11 is a shank having a head 12 secured thereto. Secured in the head 12 is a retainer 13 behind which a series of small balls 14 are free to turn. A large ball 15 is Specification of Letters Patent.

Patented Apr. 11, 1922.

serial No. 431,733.

secured in place by a retainer 16 threaded to the head 12 as shown at 17. The large ball 15 is pressed upwardly in contact with the small balls 11 which turn in suitable raceways formed in the head 12.

Vhile I have shown a shank 11 which is suited to go into an opening in the leg of a piece of furniture, it is to be understood that my invention covers any embodiment in which the head 12 is secured to the device which it is desired to be supported.

It is also to be understood that while I have shown one method of supporting and guiding the balls 141, that various methods may be used in place thereof without departing from the spirit of my invention.

I claim as my in` ention:

A caster comprising a shank having a head secured thereto, said head having an exterior thread on its lower end and a small recess in a central cavity; a large ball extending into said cavity; a retainer threaded on said eX- terior thread on. said head; a split ring sprung into the recess in said cavity and a plurality of small balls above said split ring.

In testimony whereof, I have hereunto set my hand at Wilson, Oklahoma, this 9 day of December, 1920.

VICTOR H. YORK. 

